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Predictions for neutron stars from holographic nuclear matter

by Nicolas Kovensky, Aaron Poole, Andreas Schmitt

This Submission thread is now published as SciPost Phys. Proc. 6, 019 (2022)

Submission summary

As Contributors: Andreas Schmitt
Preprint link: scipost_202201_00043v1
Date accepted: 2022-05-06
Date submitted: 2022-01-31 18:43
Submitted by: Schmitt, Andreas
Submitted to: SciPost Physics Proceedings
Proceedings issue: XXXIII International Workshop on High Energy Physics (Hard Problems of Hadron Physics: Non-Perturbative QCD & Related Quests)
Academic field: Physics
  • High-Energy Physics - Phenomenology
  • Nuclear Physics - Theory


We discuss masses, radii, and tidal deformabilities of neutron stars constructed from the holographic Witten-Sakai-Sugimoto model. Using the same model for crust and core of the star, we combine our theoretical results with the latest astrophysical data, thus deriving more stringent constraints than given by the data alone. For instance, our calculation predicts - independent of the model parameters - an upper limit for the maximal mass of the star of about 2.46 solar masses and a lower limit of the (dimensionless) tidal deformability of a 1.4-solar-mass star of about 277.

Published as SciPost Phys. Proc. 6, 019 (2022)

Submission & Refereeing History

Published as SciPost Phys. Proc. 6, 019 (2022)

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Submission scipost_202201_00043v1 on 31 January 2022

Reports on this Submission

Anonymous Report 1 on 2022-2-25 (Invited Report)


The paper concerns a very hot subject of such the neutron star characteristics as its mass, radius, and tidal deformability. The authors managed to apply , in a quite inventive way, a holographic model by Witten et al., with concrete results which allow comparison with the observational data. The latter shows that the holography principle works amazingly well.

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